The correctly set pH value of water in the pool is a precondition for perfect functioning of an overwhelming majority of the agents from the PROPOOL range as well as for creation of pleasant swimming conditions. The pH value of water should be between 6.8 and 7.6; this may be verified by means of a suitable pool tester.
A pH value above 7.6 may lead to mineral turbidity, the filtering system may become blocked, the disinfection efficiency is reduced, the eyes and skin become irritated. A pH below 6.8 causes metal and concrete corrosion, discolouring and eye and skin irritation. If the pH value exceeds 7.6, lower it with pH MINUS. Each 80 g of pH MINUS dose of 80 g per 10 m3 of water in the pool will lower the pH value by ~0.1. The measured amount of the product is dissolved in a plastic bucket in water and is poured into the deepest part of the pool while water circulation is switched on. After all the water in the pool is perfectly mixed, the pH value is measured again and the whole procedure may be repeated depending on the result.